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stepan [7]
3 years ago
8

Write an expression for the length 7mm and it’s width 62mm for the rectangle

Mathematics
1 answer:
Veronika [31]3 years ago
3 0
First statement:
l = 7 + w

Second statement:
21 + 2w  > 62

The first statement is the answer to A

B. 2(7 + w) + 2w > 62
14 + 2w + 2w > 62
14 + 4w > 62

C. Subtract 14 from both sides 
4w > 48
Divide both sides by 4
w > 12

The width of the rectangle must be strictly 12mm
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Construct a 96% confidence interval if a sampling distribution has a mean of 20, a standard deviation of 5, and a size of 100.
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Using the t-distribution, the 96% confidence interval is given as follows:

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The confidence interval is:

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More can be learned about the t-distribution at brainly.com/question/16162795

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